Feedback

hint support for $graphLookup

Currently you can supply a `hint` to the `aggregation` call in order to tell MongoDB to use a specific index for the initial `$match`. But there is currently no way to specify which index to use for a `$graphLookup` later in the pipeline. I would...

Guest over 3 years ago in Querying & Aggregations 0 Submitted

1 VOTE

Scheduled stepdown for smoother primary election

Stepdown is a great tool that allows us to keep clusters operating smoothly. We use it for example when we want to perform some maintenance work on the host where the primary is currently running, to perform a rolling upgrade, and in many other ca...

Guest almost 2 years ago in Replication & Sharding 0 Submitted

1 VOTE

Add Relaxed mode support for the $out operator

Add Relaxed mode support for the $out operator. *and include as option in the existing drivers

Guest almost 2 years ago in Querying & Aggregations 0 Submitted

1 VOTE

Aggregations should allow an empty sort stage instead of returning an error

When you run an aggregation pipeline that contains an empty sort stage (like `{"$sort": {}}`) MongoDB returns the error message "$sort stage must have at least one sort key". It would be really helpful if such a stage would work and simply not app...

Guest almost 2 years ago in Querying & Aggregations 0 Submitted

1 VOTE

allow mongosync to migrate few field from source to destination for collection in database

right now mongosync will migrate all the fields from source to destination based on filter or non filter setting but there is no way to move few field out of all field for all document to migrate few field from source to destination for collect...

Dasharath Dixit almost 2 years ago in Replication & Sharding 0 Submitted

2 VOTE

Use dedicated interface for replication and balancing

Like many other big database system, MongoDB may support to specify dedicated interfaces for replication and/or for the balancer (sharding) Currently you can configure replication sets and shards members only by single hostname/IP-Address, i.e. *...

Wernfried Domscheit almost 4 years ago in Replication & Sharding 0 Submitted

1 VOTE

Sorting support on Array fields.

Presently, I'm attempting to arrange(sort) the documents within my collection based on a key nested within an array object. However, sorting isn't functioning as expected in this scenario. A proper explanation with example is here what I mean. ht...

Guest about 2 years ago in Querying & Aggregations 0 Submitted

1 VOTE

JSON

I'm converting a lot of data for export from MongoDB -> Postgresql I would like an aggregation function to convert an object to JSON { "$addField": { "_id": true, "json": { '$convert': { 'input': '$subdocument', 'to': 'json', # // Id...

Guest about 2 years ago in Querying & Aggregations 0 Submitted

2 VOTE

support $lookup for update aggregation

We frequently denormalise either full documents or subsets to different documents in order to speed up reading, create indexes or paginate/sort on fields. Consider a user collection and a task collection, if a task can be assigned to the user, it...

Guest over 4 years ago in Querying & Aggregations 2 Submitted

2 VOTE

Ability to replicate the data within a cluster to another cluster

Two different scenarios. One scenario is to have a DR cluster. 2 independant clusters that are one way synced. As of right now, a custom CDC solution (custom code + Kafka) is needed to achieve this. Another is because of latency and the requirem...

Guest over 4 years ago in Replication & Sharding 0 Submitted

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